ASTROSAT CZTI

Data Quality Report

Orbit 30711

Creation date: 2024-06-27T20:18:54.122958
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C05_008T01_9000004432_30711cztM0_level2.evt modeM0/AS1C05_008T01_9000004432_30711cztM0_level2_quad_clean.evt
Size (bytes)230,463,36040,703,040
Size219.8 MB 38.8 MB
Events in quadrant A1,139,632276,272
Events in quadrant B1,768,855274,275
Events in quadrant C1,433,943264,496
Events in quadrant D2,480,646252,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049211
B069231
C057481
D089691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2282120.525855%
B2282160.701139%
C22821215.302366%
D22821496.529360%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2282 2282 6 6 0.26% 0.26%
B 2282 2282 1 1 0.04% 0.04%
C 2282 2282 35 35 1.53% 1.53%
D 2282 2282 138 138 6.05% 6.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 13 61108 1060.87 275 270 57.3
A 8 192 12295 209.69 275 270 57.3
A 13 254 3906 63.4 275 270 57.3
B 6 159 657870 11846.86 277 271 55.5
B 0 190 8789 153.45 277 271 55.5
B 12 111 6662 115.14 277 271 55.5
C 10 22 278357 4276.71 269 271 65.0
C 14 238 43434 663.81 269 271 65.0
C 0 10 33860 516.57 269 271 65.0
D 8 195 1416133 21914.4 267 260 64.6
D 13 174 13969 212.18 267 260 64.6
D 2 234 9233 138.88 267 260 64.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter